How to make your own extension cord - South African plug and Janus coupler - YouTube
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Utilitech 8-ft 16 / 3-Prong Indoor Spt-2 Light Duty Flat Plug Extension Cord in the Extension Cords department at Lowes.com
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Flat 3-Outlet Extension Cord 12 Ft for Indoor Use by Bindmaster- UL-Listed 3-Prong Multi Extension Wire- Space-Saving Flat Angled Extension Cord - Amazon.com
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Maximm Cable 3 Feet Flat Plug Extension Cord/Wire, Multi Outlet - 3 Prong Angled Plug Extension Cord - Black UL Certified - Amazon.com